Merge pull request #107 from dr0i/compression

Flux adaption ; make use of FileOpener also for stats
Remove Travis mirror from settings.xml (been down since a few days)
Add missing test file
Rename a flux file
Change URL to the cool URI
Add classes which pass an RDF model instead of a String

Add OAI PMH and make it available in flux commands
Add test , excluding online tests; provide flux